DOWEX MARATHON 550A (OH)

A uniform particle size strong base anion exchange resin for mixed bed demineralization and condensate polishing applications.

Product Name Type Matrix Functional Group
DOWEX MARATHON 550A (OH) Type I Strong Base Anion Styrene-DVB, Gel Quaternary Amine


Guaranteed Sales Specification Units OH- Form
Total Exchange Capacity, min. eq/L 1.1
Total Exchange Capacity, min. kgr/ft3 as CaCO3 24.0
Water Retention Capacity % 55 - 65
Particle Size Distribution
     Mean Particle Size μm 590 ± 50
     Uniformity Coefficient, max. 1.1
Ion Conversion, min. OH- form % 93


Typical Physical and Chemical Properties Units OH- Form
Total Swelling (Cl- → OH-) % 25
Particle Density g/mL 1.08
Whole uncracked beads, min. % 95
Shipping Weight, approx. g/L 640
Shipping Weight, approx. lbs/ft3 41
Crush Strength
     Average, min. g/bead 350
     > 200 g/bead, min. % 95


For additional particle size information, please refer to the Particle Size Distribution Cross Reference Chart (40KB PDF).



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